JP3315097B2 - Flat roof tile - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a flat roof tile used as a roofing material for a building, and more particularly to a flat roof tile which is resistant to tread cracks and has good drainage.

[0002]

BACKGROUND OF THE INVENTION Flat roof tiles 100 used as a roofing material are described in, for example, FIGS. 7 and 8 (XX in FIG. 7).
As shown in the figure, a large number of objects are laid in the horizontal and vertical directions on the surface of the roof base plate 101 to cover the entire roof. At this time, in the horizontal direction, the flat roof tiles 100 are laid down while forming the abutting portion 100a by abutting the left edge and the right edge thereof to form the first stage. Further, in the vertical direction, the same first tier is entirely shifted in the horizontal direction by half of the left-right width of the flat shingle 100, and the lower half of the first tier is already laid. On top of By continuing the same operation, the roofing by the flat tile 100 is completed.

FIG. 7 and FIG. 8 show three steps for explaining the overlapping state of the flat roof tiles 100. The dashed line in FIG.
The flat roof tiles indicated by the dashed line and the solid line are referred to as the first, second, and third steps in this order. This order also corresponds to the order of actual construction.

[0006] Focusing on one flat roof tile 100 in the third row in FIG. 7, as is apparent from FIG. 8, the upper end of the flat roof tile 100 in the third row is placed on the ground board 101. The lower end is placed on the second-stage flat tile 100 or on the second-stage flat roof 100 that is stacked on the first-stage flat roof tile 100. That is, a gap G having a wedge-shaped cross section is formed between the base plate 101 and the lower surface (back surface) of the region A indicated by the oblique line rising upward in FIG. B is placed on the upper half part of the second flat tile 100, and the area C indicated by the solid horizontal line is the two flat tiles 100 of the first flat tile 100 and the second flat tile 100. It is placed on a flat roof tile. For this reason, the maximum width in the above-mentioned gap G is a step corresponding to two flat tiles 100.

When such a gap G is formed between the flat tile 100 and the ground board 101, when the worker walks on the flat tile 100 after the roofing is completed, for example, when installing an antenna or painting a reform. In addition, there is a disadvantage that the flat tile 100 is easily broken, that is, a foot crack is easily generated.

As a first measure for solving this drawback, for example, as shown in FIGS.
02 was inserted. In addition, as a second measure, as shown in FIG.
The length L1 of “a” is increased to eliminate a portion where a step difference corresponding to two sheets is formed in the gap G. That is, FIG.
In other words, the portion D of the two-stage flat roof tile 100 is extended upward.

[0007]

By implementing the above-mentioned first measure or second measure, an effect of reducing step cracks was obtained.

However, according to the first measure, the gap G between the two steps is formed on the lower surface of each of the flat tiles 100, so that the scraps 102 need to be inserted into the gaps G of all the flat tiles 100. Therefore, there is a problem that the number of man-hours for that purpose increases, which leads to an increase in cost.

On the other hand, according to the second measure, since the length of the butted portion 100a is extended, the area of the overlapping portion of the flat tile 100 increases, and the effective working rate of the flat tile 100 decreases. That is, in accordance with the length of the extended portion of the butted portion 100a, the flat tile 10
There is a problem that the number of zeros increases.

Further, as a common problem of the first and second measures, there is a problem that although there is a slight effect on foot cracking, foot cracking still occurs and is not a fundamental improvement measure. is there.

Another problem is rainfall. That is, since the surface of the flat tile 100 is flat, it is easy for rainwater to enter the butted portion 100a,
The rainwater that has entered from here has been transmitted to the field board 101 from the top C1 of the area C where the three flat roof tiles 100 are stacked, and has contributed to rain leakage. In this regard, the second
The same applies to the case where the butted portion 100a is extended. In the second measure, the dimension C of the area C is also determined.
It is not effective for rain leaks unless 2 is changed.

SUMMARY OF THE INVENTION Accordingly, an object of the present invention made in view of the above points is to provide a flat plate for preventing stepping cracks and rain leakage without increasing the number of working steps or the number of flat tiles required for roofing. The purpose is to provide tiles.

[0013]

According to the first aspect of the present invention, there is provided a roofing material for a building, wherein a large number of roofing materials are arranged side by side on a field board. In the vertical direction, the lower part of the upper one should be overlapped with the upper part of the lower one in order, and the right and left width of the flat tile
A flat tile having a substantially constant thickness, which is arranged on the base plate while being shifted laterally by half of the base portion, and a base portion having a lower surface in contact with the base plate, and a lower surface parallel to the base portion;
Touches the upper surface of the base portion of another flat tile and
The first weight placed at a position higher by one tile thickness than the
The tatami part is parallel to the base part, and the lower surface is in front of another flat roof tile.
Contacting the upper surface of the first overlapping portion, and making the tile more
A second superimposing portion disposed at a position higher by one thickness,
A first connecting part connecting the base part and the first overlapping part
And a second connecting the first overlapping portion and the second overlapping portion.
The flat portion of the flat tile having the second overlapping portion
Is the middle part of the left and right short edges as the butted part of the flat roof tile
And is provided between the second connecting portion and the lower edge of the flat roof tile.
And said that you are.

According to the first aspect of the present invention, the flat roof tile is
A base portion, a superimposed portion, and a connecting portion for connecting these,
Since the lower surface of the base portion is in contact with the base plate and the lower surface of the overlapping portion is in contact with the upper surface of another flat tile, the lower surface of the flat tile and the base plate, and the lower surface of the flat tile and another flat tile are different. No gap is formed between the upper surface and the upper surface. Therefore, step cracks can be prevented. Also, two flat tiles
This also applies to the first superimposing section and the second superimposing section, which is a three-layered section.
No gap is formed on these lower surfaces. Also flat tile table
The rainwater that has flowed down the surface and reached the second superimposed portion is the second superimposed portion.
The flow changes along a second connection provided along the
So that the rainwater flow is located below the second
It is prevented from going toward the butted part of the flat tile,
It can prevent rainwater from entering the joint
You.

According to a second aspect of the present invention, in the flat tile according to the first aspect, the second overlapping portion has the second overlapping portion.
Two flat tiles placed on the left and right adjacent to the bottom of the flat tile
Cover the butted part, and
Into a triangular shape with the top of the flat tile below it
It is made, characterized in that.

According to the second aspect of the present invention, the surface of the flat roof tile is
Rain water reaches the second superimposed part, and the rainwater sandwiches the vertex
As it flows down diagonally along the two sides of the triangle,
Prevents rainwater from entering the butt
You.

[0017]

The present invention according to claim 3 provides the present invention according to claim 1 or 2
In the flat roof tile of the above, the gradient of the connecting portion in a state where the roof portion is arranged on the ground board is such that the roof gradient α is α ≧ 3.5.
Is set at 3.5 / 10 or less.

According to the third aspect of the present invention, rainwater flowing on the surface of the flat roof tile can smoothly pass over the connecting portion. The smooth flow of rainwater is hindered, and it is possible to prevent rainwater from entering between the flat roof tiles.

[0020]

[0021]

[0022]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiment 1 of a flat roof tile according to the present invention will be described below with reference to FIGS. In addition,
1 is an overall perspective view of a flat tile, FIG. 2 is a perspective view showing a state in which a roof is covered with the flat tile, FIG. 3 is a plan view showing an overlapping state of the flat tile, and FIG. 4 is Y in FIG. -Y arrow view,
FIG. 5 is a diagram illustrating the operation of the connection unit.

As shown in FIG. 1, the flat roof tile 10 has a lower edge 11, a left edge 12 and a right edge 13 perpendicular to the lower edge 11, and a left upper edge 14 inclined upward from the upper end of the left edge 12 to the right.
And an upper right edge 15 inclined upward and leftward from the upper end of the right edge 13, and is formed in a home base shape as a whole. The thickness t of the flat roof tile 10 is set substantially constant, and is usually selected in the range of 4 to 6 mm. The flat roof tile 10 has a base portion 20, a first overlapping portion 21, and a second overlapping portion 22, and further has connecting portions 23 and 24 for connecting these.

With reference to the position of the base portion 20, the first
Is disposed at a position higher than the base portion 20 by the thickness t, and the second superimposed portion 22 is
It is arranged at a position higher than 0 by twice the thickness t (2t).

The second overlapping portion 22 is formed in a triangular shape surrounded by the connecting portions 24, 24 and the lower edge 11.

The connecting portions 23 and 23 are connected to the base 20 and the first
Are formed by the inclined surfaces connected to the overlapping portions 21 and 21 of the first embodiment. In addition, the connecting portions 24 are connected to the first overlapping portion 2.
The first and second overlapping portions 22 are formed by inclined surfaces connecting the first and second overlapping portions 22.

In roofing, as shown in FIG. 2, a large number of the above-described flat tiles 10 are arranged in a horizontal direction and a vertical direction on a roof base plate 30 (see FIG. 4). In the horizontal direction, a large number of abutting portions 16 are formed so that the left edge 12 and the right edge 13 abut on each other.
Construct a stage. The next flat tile 10 has a width a in the horizontal direction.
Of the flat tile 1
0 so that they are placed on top of each other. In this manner, the steps are sequentially stacked to cover the entire field board 30.

FIGS. 3 and 4 show three steps for explaining the overlapping state of the flat roof tiles 10. FIG. The flat roof tiles 10 shown by broken lines, dashed lines, and solid lines in FIG.
The first and third rows. This order also corresponds to the order of actual construction.

In FIG. 3, a is the width of the flat roof tile 10,
It is set to 10 mm. b is the length of the left and right edges 12, 13 (same as the length of the butted portion 16), and 230
３００300 mm. c is the distance of the flat roof tile 10 between each step (the same as the working length in the direction of rainwater flow), and 180 to
It is 200 mm. D is the length of the second superimposed portion 22 and is set to 50 to 100 mm.

Focusing on one flat roof tile 10 in the third stage in FIG. 3, as can be seen from FIG.
The lower surface 20a of the base portion 20 comes into contact with the base plate 30,
In addition, the lower surface 22a of the second overlapping portion 22 is in contact with the upper surface 21a of the first overlapping portion 21 of the two-stage flat roof tile 10.
Although not shown, the lower surface of the first overlapping portion 21 of the third-stage flat roof tile 10 is in contact with the upper surface of the base portion 20 of the second-stage flat roof tile 10.

As described above, the flat roof tile 10 has the connecting portions 23, 2
4 except for the base part 20 and the first part.
The superimposed portion 21 and the second superimposed portion 22 are in contact with the top plate 30 and the upper surface of the other flat roof tile 10, and no gap is formed. In other words, the base portion 20, the first overlapping portion 21, and the second overlapping portion 22 are supported from below by the upper surface of the field board 30 or another flat roof tile 10. Therefore, even if the worker walks on the flat roof tile 10 after the roofing is completed, for example, when installing an antenna or painting a reform, no stepping crack occurs.

Further, unlike the first conventional measure, there is no need to insert a piece of scrap between each flat roof tile 10 and the base plate 30, so that the number of work steps can be reduced.

Furthermore, unlike the second conventional measure, it is not necessary to extend the butted portion 16, so that it is possible to prevent an increase in the number of flat tiles 10 required for roofing.

In addition, unlike the conventional flat and monotonous flat roof tiles, the connecting portions 23 and 24 formed obliquely form a pattern to provide a visual accent.

Next, a description will be given of rain leakage.

When the rainwater flowing on the surface of the flat roof tile 10 reaches the top 22a of the second overlapping section 22, the second overlapping section 2
Since 2 has a triangular shape and projects to the surface side, rainwater flows along the connecting portions 24, 24 so as to avoid the butting portion 16 of the lower flat roof tile. For this reason, it is difficult for rainwater to enter the abutting portion 16, and therefore, it is possible to effectively prevent rain leakage.

Next, the effect of the connecting portions 23 and 24 on rainwater flowing on the surface of the flat roof tile 10 will be examined.

As shown in FIG. 5A, the slope of the roof (the slope of the base plate 30) is α / 10, and the inclination angles of the connecting portions 23 and 24 formed by the inclined surfaces are shown in FIG. 5B. As shown, when β / 10, if α ≧ β, rainwater flows smoothly without collecting in the connecting portions 23 and 24. In general, the slope α of the roof is set so that α ≧ 3.5. Therefore, if the inclination angle β of the connecting portions 23 and 24 is set to 3.5 / 10 or less, the rainwater naturally flows. It will flow down.

FIG. 6 shows another embodiment of the flat roof tile 40. 3, the flat roof tiles 40 indicated by broken lines, dashed lines, and solid lines are the first, second, and third rows in this order, similarly to FIG. The flat roof tile 40 has a base 50
And the first overlapping portion 51 at a position higher by a thickness t than this.
A second overlapping portion 52 at a position higher by twice the thickness t,
It is constituted by connecting portions 53 and 54 for connecting these.

The flat tile 40 has a width a of 400 to 60.
0 mm, the length b of the butted portion 56 is set to 50 to 100 mm, the working length c in the flow direction of rainwater is set to 300 to 500 mm, and the length d of the second overlapping portion 52 is set to 70 to 120 mm.

Even with the flat roof tile 40 having the shape shown in the drawing and the dimensions of each part as described above, the effect can be improved in substantially the same manner as the flat roof tile 10 shown in FIG. in addition,
When roofing is performed by the flat tile 40, a hexagonal turtle pattern appears on the entire roof, and the design is also excellent in aesthetics.

The flat roof tile 10 and the flat roof tile 40 described above
Are symmetrical with respect to a straight line passing through the center in the width direction, but the present invention is not limited to a symmetrical shape. Further, the specific numerical values given in the above description are merely examples, and it goes without saying that other numerical values may be used instead.

The flat tile according to the present invention is characterized by its shape and is suitable as a roofing material for detached houses and the like.
Any material can be used. It is possible to use metal-based or plastic-based products as well as ceramic-based products. Even when these are used, the same effect as described above can be obtained.

[0044]

According to the flat roof tile of the present invention described above,
A base portion whose lower surface is in contact with the base plate, a superimposed portion which is parallel to the base portion, and whose lower surface is in contact with the upper surface of another flat roof tile, and which connects the base portion and the superimposed portion, or has a thickness direction mutually. And a connecting portion for connecting two adjacent overlapping portions different in position from each other, so that any portion constituting the flat roof tile belongs to any one of the base portion, the overlapping portion and the connecting portion. Since the lower surface of the part is in contact with the base plate and the lower surface of the superimposed part is in contact with the upper surface of another flat tile, the lower surface of the flat tile and the base plate, and the lower surface of the flat tile and the other flat tile No gap is formed between the upper surface. Therefore, step cracks can be prevented.

A second overlapping portion is disposed below the flat roof tile having the second overlapping portion, and covers the butting portion of two right and left adjacent flat roof tiles and the lower flat plate in the butting portion. Since the top of the tile is formed in a triangular shape with the top as the apex, rainwater that has flowed down the surface of the flat tile and reached the second superimposed portion flows down diagonally along the two sides of the triangle sandwiching the apex. In addition, it is possible to prevent rainwater from entering the butted portion.

[Brief description of the drawings]

FIG. 1 is a perspective view showing the overall appearance of one flat roof tile.

FIG. 2 is a perspective view showing a state where a roof is roofed by a flat tile;

FIG. 3 is a plan view showing an overlapping state of flat tiles.

FIG. 4 is a view taken in the direction of arrows YY in FIG. 3;

FIG. 5 is a diagram illustrating an operation of a connecting unit.

FIG. 6 is a perspective view showing a state in which a roof is roofed by another flat tile;

FIG. 7 is a plan view showing an overlapping state of conventional flat tiles.

FIG. 8 is a view taken along line XX of FIG. 7;

FIG. 9 is a plan view showing an overlapping state of another conventional flat roof tile.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Flat roof tile 16 Butt part 20 Base part 20a Lower surface 21 1st superposition part 22 2nd superposition part 23 Connecting part 24 Connection part 30 Field plate 40 Flat roof tile 50 Base part 51 1st superposition part 52 2nd superposition part 53 Connecting part 54 Connecting part 56 Butt part α / 10 Roof slope β / 10 Connection part slope

Continuation of front page (58) Field surveyed (Int.Cl. ⁷ , DB name) E04D 1/00-1/30

Claims (3)

(57) [Claims] 1. A with aligned on sheathing roof on the plate by butt-jointing a number of things in the lateral direction as roofing of a building, in the longitudinal direction so as to overlap the lower portion of the upper ones sequentially on top of the lower ones and each The steps are only half of the left and right width of the flat tile.
A flat tile having a substantially constant thickness, which is arranged on the base plate so as to be displaced in the direction, and a base portion having a lower surface in contact with the base plate, and a lower surface parallel to the base portion and a lower surface of another flat tile. The base
Contact the upper surface of the part, and only one tile thickness more than the base part
A first overlapping portion disposed at a high position, and a first overlapping portion of another flat roof tile parallel to the base portion and having a lower surface.
Touches the upper surface of the tatami part and is one tile thicker than the first superposed part.
A second overlapping portion disposed only at a higher position, and a first connection for connecting the base portion and the first overlapping portion.
And a second link connecting the first overlapping portion and the second overlapping portion.
And the connecting portion , wherein the second overlapped portion is formed of left and right as a butted portion of the flat tile.
In the middle of the short edge, surrounded by the second connecting portion and the lower edge of the flat tile
A flat roof tile characterized by being provided . 2. The second overlapping portion is disposed below a flat roof tile having the second overlapping portion and covers a butt portion of two left and right adjacent flat roof tiles, and the lower portion of the butt portion below the flat roof tile. The flat roof tile according to claim 1 , wherein the flat roof tile is formed in a triangular shape having an uppermost portion as an apex. 3. The gradient of the connecting portion in a state where the connecting portion is arranged on the field board, the roof gradient α is set to α ≧ 3.5.
The flat roof tile according to claim 1, wherein the thickness is set to 3.5 / 10 or less.